CLEANING, LAUNDERING OR TREATING COMPOSITIONS CONTAINING CROSS-LINKED HYDROLASE CRYSTALS

摘要

The present invention provides a product and method for cleaning or launderi ng or treatment of fabrics or surfaces, with a liquid cleaning, laundering or treating composition having improved enzyme stability in the presence of an oxidant comprising a) at least one cross-linked hydrolase crystal, or mixtur e of hydrolase crystals; b) an oxidant, or source of hydrogen peroxide; and c) at least one cleaning, laundering or treating additive, other than an oxidan t, wherein the improved stability is due to one or more of the following: (i) where c) includes a surfactant, maintaining the upper limit thereof to no greater than 10 % by weight of the composition; (ii) maintaining the pH of t he liquid composition between 5 and 8; and (iii) where c) includes surfactants, no more than 20 % of the total surfactants is anionic. The use of the cross- linked hydrolase crystals results in compositions which have surprisingly proficient retained hydrolytic stability in the presence of such oxidant versus a commercially available non-cross-linked enzyme.